221016215

素因数分解:

$5^1\times 7^2\times {\mathrm{419}}^1\times {\mathrm{2153}}^1$

素因数の和:2591

約数の個数: 24

約数和(自身を含む): 309400560

約数和(自身を除く): 88384345

約数列:

[1, 5, 7, 35, 49, 245, 419, 2095, 2153, 2933, 10765, 14665, 15071, 20531, 75355, 102655, 105497, 527485, 902107, 4510535, 6314749, 31573745, 44203243, 221016215]

約数ペア:

[(1, 221016215), (5, 44203243), (7, 31573745), (35, 6314749), (49, 4510535), (245, 902107), (419, 527485), (2095, 105497), (2153, 102655), (2933, 75355), (10765, 20531), (14665, 15071)]